<template>
    <div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea placeholder="请输入要评论的内容" maxlength="120" v-model="msg"></textarea>

    <mt-button type="primary" size="large" @click="postComments">发表评论</mt-button>

    <div class="cmt-list">
      <div class="cmt-item" v-for="(item,index) in comment" :key="item.add_time">
        <div class="cmt-title">
          第{{index+1}}楼&nbsp;&nbsp;用户：{{item.user_name}}&nbsp;&nbsp;发表时间：{{item.add_time | dateFormat}}
        </div>
        <div class="cmt-body">
          {{ item.content === 'undefined' ? '此用户很懒': item.content }}
        </div>
      </div>

    </div>

    <mt-button type="danger" size="large" plain @click="more">加载更多</mt-button>
  </div>
</template>

<script>
import {Toast} from 'mint-ui'
export default {
    data: ()=>({
        pageindex:1,
        comment:[],
        msg:''
    }),
    props:['id'],
    created(){
        this.getComments()
    },
    methods:{
        getComments(){
            this.$http.get('api/getcomments/'+this.id+'?pageindex='+this.pageindex+'').then(result=>{
                // console.log(result)
                if(result.body.status === 0){
                    this.comment = this.comment.concat(result.body.message)
                }else{
                    Toast('err')
                }
            })
        },
        more(){
            this.pageindex++
            this.getComments()
        },
        postComments(){
            if(this.msg.trim().length === 0){
                return Toast('请输入内容')
            }
            this.$http.post('api/postcomment/'+this.id,{content:this.msg.trim()})
            .then(result=>{
                // console.log(result)
                if(result.body.status === 0){
                    var cmt = {
                        user_name:'匿名用户',
                        add_time: Date.now(),
                        content:this.msg.trim()
                    }
                    this.comment.unshift(cmt)
                    this.msg = ''
                }
            })
        }
    }
}
</script>

<style lang="less" scoped>
    .cmt-container {
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }

  .cmt-list {
    margin: 5px 0;
    .cmt-item {
      font-size: 13px;
      .cmt-title {
        line-height: 30px;
        background-color: #ccc;
      }
      .cmt-body {
        line-height: 35px;
        text-indent: 2em;
      }
    }
  }
}
</style>